Commits
Andi Kleen committed f0fdabf8bf1
[PATCH] x86_64: Don't warn for overflow in nommu case when dma_mask is < 32bit This triggers for b44's 1GB DMA workaround which tries to map first and then bounces. The 32bit heuristic is reasonable because the IOMMU doesn't attempt to handle < 32bit masks anyways. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>